In this analogy based on biological classification, Frog is related to Amphibian as Lizard is related to which class of animal: Frog : Amphibian :: Lizard : ?

Introduction / Context:
This analogy question examines your basic knowledge of animal classification. In the pair Frog : Amphibian, frog is the animal and amphibian is the class or group it belongs to in biological taxonomy. You are asked to identify a similar relationship for lizard. Understanding broad animal classes like amphibians, reptiles, mammals and insects is important for many competitive exams.

Given Data / Assumptions:

• A frog is known to be an amphibian, living both in water and on land.
• A lizard is a familiar small animal often seen on walls and in gardens.
• The options include Rodent, Mammal, Reptile and Insect, which are different biological or descriptive categories.
• We assume the standard school level biological classification of animals.

Concept / Approach:
The relationship in Frog : Amphibian is animal : class. We must determine the correct class that includes lizards. Lizards are cold blooded, scaly animals that lay eggs on land, which are key characteristics of reptiles. Therefore, we identify the option that names this class. The other options either refer to different classes or to narrower groups within mammals.

Step-by-Step Solution:
Step 1: Confirm the relationship in the given pair. Frog is an individual animal species, and amphibian is the class of animals that live both on land and in water.Step 2: Identify the second animal in the analogy, which is Lizard.Step 3: Recall that lizards, snakes, crocodiles and turtles are all examples of reptiles.Step 4: Examine the options: Rodent, Mammal, Reptile and Insect.Step 5: Recognise that rodents are a subgroup of mammals that includes animals like rats and mice, not lizards.Step 6: Mammal is the class for animals like humans, cows and dogs, which are warm blooded and have hair, not scales.Step 7: Insects are small invertebrates with six legs, such as ants and flies, which also does not fit lizards.Step 8: Reptile is the only class that correctly includes lizards.

Verification / Alternative check:
We can verify by forming parallel descriptive statements: "A frog is an amphibian" and "A lizard is a reptile." Both statements are scientifically accurate and mirror the animal class relationship. None of the other classes in the options fit lizards according to basic biology, which confirms that Reptile is the correct choice.

Why Other Options Are Wrong:
Option A, Rodent, describes a type of mammal, not lizards. Option B, Mammal, is incorrect because lizards do not share mammalian traits such as hair and live birth in most cases. Option D, Insect, refers to small six legged invertebrates, which lizards clearly are not. Hence, these options do not match the required animal : class relationship for lizard.

Common Pitfalls:
Some candidates may confuse reptile and amphibian or may not recall the basic animal groups clearly. Others may loosely associate lizards with insects because both can be small and found around homes. To avoid such mistakes, revise standard classifications like amphibians, reptiles, mammals, birds and insects and link each to familiar examples.

Final Answer:
The correct completion of the analogy is Reptile, so option C is right.